Case study:Improvement of ecological state of the river Pisuerga between the dam of Aguilar de Campo and Alar del Rey (Palencia) - 1st Stage.

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Location: 42° 43' 26", -4° 17' 7"
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Project overview

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Status Complete
Project web site
Themes
Country Spain
Main contact forename Ignacio
Main contact surname Rodríquez
Main contact user ID
Contact organisation Confederación Hidrográfica del Duero
Contact organisation web site
Partner organisations
Parent multi-site project
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encompassing the following
projects
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Project summary

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The Pisuerga River has a high regulation of the flow regime, which determines an artificial and seasoned flow regime. Also, the massive release of sediments is affected by the presence of weirs, which difficult and blocks the mobility for fish upstream migration and habitat availability. This is the first stage of the total project which involves mitigation and preventive measures. The global objectives are: Improve aquatic habitats and recover aquatic communities; improve longitudinal connectivity; stream bank stabilization; improve the structure and composition of the vegetation. The measures comprise earthworks for bank stabilization (to reduce erosion and sediment input, and facilitate the establishment of vegetation), the installation of fish pass and the rehabilitation of spawning areas. The project has a total budget of 3.135.508 € and is financed by the Ministry of Environment, as part of the National Strategy for River Restoration.

Monitoring surveys and results

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Lessons learnt

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Image gallery


Map of the actuation area
Aerial view of Pisuerga River
Pisuerga River channel
Weir in Pisuerga River
Aguilar de Campoo dam
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Catchment and subcatchment

Catchment

River basin district C.H.Duero
River basin Pisuerga

Subcatchment

River name Pisuerga
Area category more than 10000 km²
Area (km2)
Maximum altitude category 500 - 1000 m
Maximum altitude (m)
Dominant geology Calcareous
Ecoregion Ibero-Macaronesian
Dominant land cover Extensive agriculture
Waterbody ID



Site

Name Las Loras
WFD water body codes 12362
WFD (national) typology
WFD water body name
Pre-project morphology Sinuous
Reference morphology Sinuous
Desired post project morphology
Heavily modified water body true
National/international site designation
Local/regional site designations Site of Community Importance
Protected species present
Invasive species present
Species of interest
Dominant hydrology Artificially regulated
Dominant substrate
River corridor land use Extensive agriculture
Average bankfull channel width category
Average bankfull channel width (m)
Average bankfull channel depth category
Average bankfull channel depth (m)
Mean discharge category
Mean annual discharge (m3/s)
Average channel gradient category
Average channel gradient
Average unit stream power (W/m2)


Project background

Reach length directly affected (m)
Project started 2009/01/01
Works started
Works completed 2009/11/01
Project completed
Total cost category 1000 - 5000 k€
Total cost (k€) 3135 k€
3,135,000 €
Benefit to cost ratio
Funding sources Water Programe, MARM

Cost for project phases

Phase cost category cost exact (k€) Lead organisation Contact forename Contact surname
Investigation and design
Stakeholder engagement and communication
Works and works supervision Confederación Hidrográfica del Duero
Post-project management and maintenance
Monitoring



Reasons for river restoration

Mitigation of a pressure
Hydromorphology Quantity & dynamics of flow, Continuity for organisms, Continuity of sediment transport, Structure & condition of riparian zones
Biology Fish: Abundance
Physico-chemical
Other reasons for the project Recreation


Measures

Structural measures
Bank/bed modifications Improve the structure and composition of the vegetation, Streambank stabilisation
Floodplain / River corridor Improve longitudinal connectivity
Planform / Channel pattern
Other Improve aquatic habitats and recover aquatic communities
Non-structural measures
Management interventions
Social measures (incl. engagement) Improved network of trails, Information panels for people
Other


Monitoring

Hydromorphological quality elements

Element When monitored Type of monitoring Control site used Result
Before measures After measures Qualitative Quantitative

Biological quality elements

Element When monitored Type of monitoring Control site used Result
Before measures After measures Qualitative Quantitative

Physico-chemical quality elements

Element When monitored Type of monitoring Control site used Result
Before measures After measures Qualitative Quantitative

Any other monitoring, e.g. social, economic

Element When monitored Type of monitoring Control site used Result
Before measures After measures Qualitative Quantitative


Monitoring documents



Additional documents and videos


Additional links and references

Link Description

Supplementary Information

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